d8e5219f9f
Improve and bugfix CRIS v10 fast timers. - irq_handler_t now only takes two arguments. - Keep interrupts disabled as long as we have a reference to the fasttimer list and only enable them while doing the callback. del_fast_timer may be called from other interrupt context. - Fix bug where debug code could return without calling local_irq_restore. - Use jiffies instead of usec (change from struct timeval to fasttime_t). - Don't initialize static variables to zero. - Remove obsolete #ifndef DECLARE_WAITQUEUE code. - fast_timer_init should be __initcall. - Change status/debug variables to unsigned. - Remove CVS log and CVS id. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Mikael Starvik <mikael.starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
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* linux/include/asm-cris/fasttimer.h
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*
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* Fast timers for ETRAX100LX
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* Copyright (C) 2000-2007 Axis Communications AB
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*/
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#include <linux/time.h> /* struct timeval */
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#include <linux/timex.h>
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#ifdef CONFIG_ETRAX_FAST_TIMER
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typedef void fast_timer_function_type(unsigned long);
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struct fasttime_t {
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unsigned long tv_jiff; /* jiffies */
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unsigned long tv_usec; /* microseconds */
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};
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struct fast_timer{ /* Close to timer_list */
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struct fast_timer *next;
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struct fast_timer *prev;
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struct fasttime_t tv_set;
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struct fasttime_t tv_expires;
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unsigned long delay_us;
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fast_timer_function_type *function;
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unsigned long data;
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const char *name;
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};
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extern struct fast_timer *fast_timer_list;
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void start_one_shot_timer(struct fast_timer *t,
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fast_timer_function_type *function,
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unsigned long data,
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unsigned long delay_us,
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const char *name);
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int del_fast_timer(struct fast_timer * t);
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/* return 1 if deleted */
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void schedule_usleep(unsigned long us);
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int fast_timer_init(void);
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#endif
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